Pith Number

pith:ITRAZSDE

pith:2012:ITRAZSDEGZUR66SPOUIXRKGCXU

not attested not anchored not stored refs pending

Approximations of the Euclidean distance by chamfer distances

Andras Hajdu, Lajos Hajdu, Robert Tijdeman

arxiv:1201.0876 v1 · 2012-01-04 · cs.IT · math.IT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ITRAZSDEGZUR66SPOUIXRKGCXU}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T04:05:15.640838Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44e20cc86436691f7a4f751178a8c2bd09d69a67749cba16dee6d44f9c32cf2d

Aliases

arxiv: 1201.0876 · arxiv_version: 1201.0876v1 · doi: 10.48550/arxiv.1201.0876 · pith_short_12: ITRAZSDEGZUR · pith_short_16: ITRAZSDEGZUR66SP · pith_short_8: ITRAZSDE

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/ITRAZSDEGZUR66SPOUIXRKGCXU \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 44e20cc86436691f7a4f751178a8c2bd09d69a67749cba16dee6d44f9c32cf2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ab776b2c6d48830312b43aee918f89537175b6a8d39e20b5d2c2386b112694d",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-01-04T11:35:24Z",
    "title_canon_sha256": "f1eedbe91ab9af36e72eb23c0e473fdbeaedcd8a92799cef4b80d91783f9a210"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.0876",
    "kind": "arxiv",
    "version": 1
  }
}